Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quando 9/07/1999 é a data de retirada, qual é o número original?
 ###Tabelas: CREATE TABLE tour_de_france (tour_de_france_id AUTO_INCREMENT PRIMARY KEY, Height (m.) VARCHAR, No. of times visited INT, No. of HC climbs INT, First time as HC climb INT, Most recent INT) CREATE TABLE region_rank_by_number_of_wins (region_rank_by_number_of_wins_id AUTO_INCREMENT PRIMARY KEY, Region Represented VARCHAR, First Place INT, Second Place INT, Third Place INT, Total Top 3 Placements INT, First Place Winning Year(s) (if applicable) VARCHAR) CREATE TABLE tournament_results (tournament_results_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Tournament VARCHAR, Location VARCHAR, Purse( $ ) INT, Winner VARCHAR, Score VARCHAR, 1st Prize( $ ) VARCHAR) CREATE TABLE targets (targets_id AUTO_INCREMENT PRIMARY KEY, HD designation VARCHAR, Constellation VARCHAR, Distance ( ly ) INT, Spectral type VARCHAR, Signal power ( kW ) INT, Date sent VARCHAR, Arrival date VARCHAR) CREATE TABLE names_and_fleet_details (names_and_fleet_details_id AUTO_INCREMENT PRIMARY KEY, Original number VARCHAR, UIC number VARCHAR, Name VARCHAR, Constructer VARCHAR, constructor number INT, Year INT, Withdrawn VARCHAR, Kilometers worked INT)  
SELECT Original number FROM names_and_fleet_details WHERE Withdrawn = 9/07/1999